Wick blue-flame oil-burner.



A. J. BLACKPORD.

WICK BLUE ELAME OIL BURNER.

APPLICATION FILED APR.24, 1909.

4 SHEETS-SHEET l.

Patented July 4, 1911.

A. J. BLAGKPORD.

WICK BLUE FLAME OIL BURNER.

APPLIUATION FILED APR. 24. 1909.

997,037. Patented July 4, 1911.

` 4 SHEETS-SHEET 2.

A. J. BLAGKFORD.

WICK BLUE FLAME OIL BURNER.

APPLICATION FILED APR. 24, 1909.

Patented .July 4, 1911.

4 SHEETS-SHEET 3.

@Rowley 4wmmm A.- J. BLAGKPORD.

lWICK BLUE FLAME OIL BURNER.

APPLIGATION FILED APR. 24, 1909.

997,037', Patented July 4,1911.

4 SHEETS-SHEET 4.

unirsi) s'rATns PATENT` onnion.

ATWELL J. BLACKE'ORD, 0F CLEVELAND, OHIO, ASSIGNOR T0 AMERICAN STOVEY COM- PANY, OF JERSEY CITY, NEW JERSEY, CORPORATION F NEW JERSEY.

wrox BLUE-FLAME OIL-BURNER.

i `Specification of Iletters Patent.

Application led April 24, 1909. Serial No. 491,879.

I To all whom it may concern:

Be it known that I, ATWELL J. BLACK- FoRD, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certainnew and useful vImprovements in Wick Blue- Flame Oil-Burners, of which the following is a specification, reference being had therein to the accompanying drawing.

rIhis invention relates to improvements in wick blue flame oil burners, of that type in which the air is so fed and controlled in its passage to and adjacentthe exposed end of the wick, as to produce a blue or non-illuminous flame. t

ln the burners of this type known to me, sudden drafts of air will sometimes change the blue-flame into a white or yellow illuminating flame, and this latter character of ame in practice-so over-heats the burner as to make it dangerous if left forany con-l siderable length of time.

The primary object of the present improvement, is to so construct the burner that the blue-dame cannot be changed into a white oryellow illuminating flame by sudden drafts of air, thus avoiding this objectionable feature; and at the same time the construct-ion is such that an intenselyn hot and odorless blue flame is produced.

The present improvement has in view cer tain other auxiliary objects which will be pointed out in the following detailed description.

In the accompanying drawings: Figure 1 is a central vertical sectional view of my improved burner. Fig. 2 is an inverted perspective view of the surrounding burner gallery attached tothe lower end of the chimney. Fig. 3 is an inverted perspective view of the vertically movable flame converter. Fig. 4 is a horizontal sectional view on the line 4-4 of Fig. 1. Fig. 5 is a horizontal sectional view on the line 5 5 of Fig.

l. Fig. 6 is a cross sectional view on the line (5*6 of Fig. 1. `Fig.-7 is a detached sectional view of the outer wick-tube and its attached parts.

.In carrying out thefpresent invention, a,

wick space is provided which is located be- -tween an inner tube 1 and an outer tube The wick 3 is located in this space and 1s surrounded by theusual sleeve 4 of the perforated form with which the usual wickraising mechanism, shown in dotted lines, isy

used and which is herein designated by the numeral 5. As this wick-raising mechanism is well known to and understood by those skilled in this art, further illustration and description is unnecessary. The outer tube 2, at its upper portion rests snugly against the outer face of the Wick and the upper ends of the inner and outer wick tubes are about in the same horizontal plane.

The burner is of the well known general type of Argand or central draft type, .the air for the inner portion of the flame passing through the inner wick tube 1. A flame converter A, moves vertically within the inner Wick-tube l, and is substantially like the flame converter described and claimed in my co-pending application, Serial `No. 377,057, and will only be sufiiciently de-l scribedl herein .to enable the present improvement to be understood. This flame converter comprises essentially a depending flange or apron a, which projects downwardly within the wick-tube 41, and is of smaller diameter to leave' an air space b between it'and the inner wall of the inner tube l, of the wick 3. Projecting outwardly from this flange or apron a is an annular flange c which rests upon the upper end of the wick 3, and this flange is provided witha plurality of openings ci' for the passage of air through them to the interior of the flame. The cover or top e for the annular depending apron a has a periphery which extends downwardly and outwardly forming in effect a flange/, and this flange is above the upper end ofthe apron a, the apron and top being connectedv by means of a suitable spider g. The upper end `ofthe apron a is bent outward in the form vof a' horizontal annular flange k and is located intermediatelyl between the `flanges. cl and f,thus constituting three outwardly'extending flanges connected and movable with the' apron a, and the spaces z between these flanges form air-passages through which unbroken horizontal sheets of` airpassfto' the interior of" the fiamefrom theY vapor formed from' the oil lin the wick. A guide rod 6, has its' lower end firmly-connected to ay suitable lspider or arm 7, which is attached to the Vlower 'portion of the inner wick-'tube 1, and" the v'upper end of this rodz, passes freely through a centrallyarranged tube m formed in the spider g, so that the flame converter 'moves vertically upon and is guided 'by this rod 6.

The upper end -ofthe rod 6' carries a detaehablestop 8, which engages the top or cover e, thus limiting the upward movement of the fiame converter, and this in turn limits the upward movement of the wick 3,

' by reason-of the engagement of the upper end of the wick with the flange c.

Thus far I have described those features Iwhich are disclosed in my aforesaid applieationand will now describethe: present improvements, which pertain particularly to the construction of the surrounding gallery Vwhich-is preferably attached to and .movable with the chimney 9. The improved gallery ,comprises a vertically arranged annular .perforated flange 10, which is located close to the outer surface of the wick 3. The upper the chimneyvthrough which a small quantity of air may pass tothe interior of the Y chimney.

Located at the outer side of the outer wick-tube 2, is an L-shaped flange 15, which :forms together with thefouter surface of the wick-tube an annular vapor receiving cup 16. The lower end of the perforated flange 10- is turned outwardly slightly as shown at 17, but neatly i-ts against the vertical-wall. l

of the-cup 16', for the purpose of properly positioningr the gallery in respect to' the .construction inclosed by the gallery flange 10, and to also form the space or cup 16 into which a portion of the vapor from the wlck will fall or flow owing to its specific gravity,`

as is well understood. Y

Partie lar attention 1s called to the vertically arrangedgallery flange 10, 1n whlch the openings'18 vary in size, small ones at the top and gradually. increasing 'in size to the central portion, from which point to the lower end, the openings are about of the same diameter. By reason of thisconstruction a largeru volume of air is supplied around the wick, gradually decreasing from about the upperend of the wick to the top of the flange 10. This construction proits nearness to the flame, and by the variation in the size ofthe openings the proper vides the proper amount ofair directly to thefouter surface of the flame, because of supply is provided. 'Attention' is also vd1- vreetedy thatfthis gallery flange 10 has an inwardly extending annular bead 19, and' that thisy is A located just slightly above the upper ends of the' wick-tube, and that this bead is provided with perforations. The

objectief this perforated bead is to bring the airne'arer to the base of the flame for the purpose of supplying air directly to the small amount of vapor generated when the burner is rst lighted, which insures a blueflame in the starting of the burner and leaves a larger space above in which the flame may develop without roaring or giving o an odor when first lighted.

The pocket or cup 16, forms a holder or space for. vapor at all times and constitutes a receptacle catching the carbon scraped` from the outer side of the wick by engagement with the upper end of the outer wicktube, and from which pocket the carbon can be readily removed from time to time, as may be necessary.

The arrangement .of the outside perforated gallery ange 10 keeps a body of air close to the flame or vapor generated and ready to immediately supply the vapor with the proper quantity with practically no distance of travel. Furthermore, the arrangement of this gallery iangeprotects the blueflame and prevents it from being converted into a yellow or white fiame by sudden drafts of air. In practice a sudden draft of air with this arrangement may cause momentarily white or yellow streaks in the flame, but it immediately returns toits no1'- mal blue-flame condition, and it is found in practice with this arrangement to be impossible to permanently change the. blueflame to a white or yellow iame under the conditions to which such burners areI subjected in domestic uses.

In burners ofthis type it has been diliicult to prevent' the blue-flame from being permanently changed into a white or yellow flame, which is very dangerous if permitted to remain in this condition for any considerable length of time, by reason of the overheating of the burner which has been known to cause serious fires. vWith this improvement a blue-flame is produced which is in- -tensely hot; free from objectionable odors and so protected that it cannot be permanently changed into the dangerous yellow or white flame when subjected to sudden airdrafts, to which these burners are bein constantly exposed. An essentially L-s aped member 20 spans the space between the lower end of the hood 11 and the outer wick-tube 2, and the bottom of this member 20 is provided with air passages 21, whichv regulate and control the volume of air passing into the space 22.

By reference to Fig. 7 it .will be seen that thevouter wick-tube 2 has attached to it the annular 'trough 16,and the L-shaped member 20. This l'.-shaped member is carried by a depending ange 23, which is located against the outerreservoir wall 24, and the parts illustratedinFig. 7 are readily removable to permit ready access to the Wick for removlng it or placing it in position. Preferably the parts shown in Fig. 7 are locked tically arrange in the position shown'in IFig. 1, by means of the well known bayonet joint connection,

1. In an oil-burner of the type described,

the combination with an annular generator,

of an air restricting device located above the generator and comprising a tubular portion having a cover, and a pluralityv of closely arranged outwardly projecting flanges located one above the other and all alcove but adjacent the generator, the spaces between the flanges being unobstructed to deliver a plurality of parallel laterally projected unbroken sheets of air to the flame adjacent the top of the generator, and a vertically arranged annular perforated air regulating and flame draft protecting ange located apart from and surrounding the air restricting device and entirely inclosing it from top to bottom.

2. In a burner of the type described, the combination with an annular vapor generator, of an inner airrestricting device located above the enerator, and an-outer verannular flange surround-.j

ing and apart from the inner air restricting device to form a flame space therebetween, said flange having transverse openings of -various sizes, the openings at itsy upper end being smaller than those of its lower por- 3. In an oil burner of the type described, the combination with an annular vapor generator of an inner air restrictin device lo` cated above the generator, an an louter verticall arranged annular gallery apge surroun ing and apart from the innerair restricting device to form a flame .space therebetween, the said flange having'transverse openings varying in size from the top to a point about at the top of the generator and of about the same size from the latter point to the bottom thereof.

4. In` an oil-burner of the t described, the combination with an ann ar vapor generator, of an inner air restricting deviceslo-l cated above the generator, and an outer vertically arranged perforated annular flange surrounding and apart from the inner air restricting device to form a flame space therebetween, said flange having an in wardly'projecting perforated bead located adjacent the base of the flange. 5. In an oil-'burner of the type described,

the combination with an annularvapor gen- A erator, of an inner air restricting device 1ocated above the enerator, a vertlcally arranged outer per orated flange urroundlng and apart from the inner air restricting device to form a Haine s ace therebetween, a hood surrounding the ange and extending outward and downward from ,the to of the flange with its lower portion apart rom the flange, and a perforated wall extending in-4 ward from the hood below the flange to control the flowv of air between the hood and said flan e.

In testimony whereof I affix my signature inpresence of two witnesses.

ATWELL J. BLAoKFoRD.

A. E. WILLIAMS, CHAs. EVANS. j 

